Improvement in submerged pumps



u To all whom it may concern:

`the suction-valves.

Massara-w ALONZO C. BLETHEN, OF LYNN, MASSACHUSETTS.

Latas Paten No. 88,538, daad Alim c, 1869.

IMPROVEMENT IN SUBMERG-ED PUMPS.

The Schedule referred to in these Letters Patentrand making part f the sam.

Be it known that I, ALONZO G. BLETHEN, of Lynn, in the county of Essex, and State o f Massachusetts, have invented a new and improved Subinerged Pump, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making a part of this specication, in which-- Figure 1 is a vertical longitudinal section ofthe pump embodying my inventions.

Figure 2 is a horizontal transverse section of the pump-barrel, on the line `x x, iig. 1.

Figure 3 are detailed views of the piston and pistonvalves.

The object of my invention is to produce a doubleacting force-pump, the pump-barrel and valves of which being entirely submerged in the liquid, and the whole completed, and all the parts connected before settingl the same; further, to simplify the delivery-valves and piston in their construction, and to arrange the pumpbarrel, suction-passage, and valves, in such a manner as to economize in space and material; also, to give a simple and effective brake for working the pump; and

My invention consists in placing the pump-barrel i near the bottom of the well, and attaching it to the lower end of the box, which thus connects the pumpbarrel withthe platform on top of well, by means of two lugs, on the upper portion of the barrel, pivoted into two corresponding projections fixed to the box. The upper portion of the box is enclosed by a hanged socket of top plate, and firmly secured to the same.

-Two ears,.or projections on top plate, serve as bearings foot of the pump, so that the transverse section ofthe pump-barrel is not increased -by the arrangement of And My invention consists further, in dispensing with a stuffing-box at the entrance of the piston-rod with the pump-barrel, and instead fit the piston-rod snugly in the cylindrical projection, and provide the latter with a series of annular grooves, which,'during the working of the cylinder, get filled with the liquid, which cannot escape with the velocity. of the piston-rod, but is retained, and thus forms a packing suflieient for the working of pumps of this kind. And in the arrangement of working the pump, by providing a socket holding the handle, with two projections' in opposite directions to one another, to the one of which the pin forming the fulcrum passes through, attaching it tothe top plate.

The other is, by means of a link, connected with a collar on piston-rod.

Referring to the drawings- A is the pump-barrel, with suction-passage B.

To the bottom of the pump-barrel is attached a plate,

C, with chamber D and legs DD D', said plate C containing the suction-valve a, opening directly into the barrel A, and the valve b, opening into the chamber D, directly under the suction-passage B.

The pump-barrel A is attached, by means of axles c c', to projections d (Z oi' box E, thus giving the former freedom to adjust itself, when misplaced while setting the pump, and prevent bindingof the piston and piston-rod.

The square box E, extending the 'whole length of the well, whateverthat may be,whet11e'r on a ship or on land, is held at its upper portion by socket-anges c e' of plate F, and bolts to plate F, which latter rests and is iirmly secured to the platform covering the top of well.

Within the pump-barrel moves the piston which A' is composed of two cylinders, screwed or connected together, the outer surface of which is provided. with annuh r grooves, for the purpose of allowing the liquid to form the pac-king.

Each of the cylinders is provided 4with a perforated diaphragm, ff', which, whenfsaid cylinders are connected, are placed a cer-tain distance apart, for the purpose of allowing the valve-plate g to play between them. Fig. 3 shows the two cylinders ff and plateg in plan views, andV a proper arrangement of the openings in the same.

To the upper cylinder is attached the piston-rod H, which is tubular, and communicates with the under surface of the upper cylinder f. To the upper portion of said tubular piston-rod H issecured the nozzle, or mouth, of cu'rved or other suitable form.

On suitable projections of plate E, is-pivoted the socket h, for holding the lever K, and bymeans 0f which, arm fi, link l, and collar m, motion is imparted to the tubular pump-rod and piston. This arrangement of lever and arm secures an even perpendicular movement to the hollow pistou-rod H in operating the pump, which is very desirable and new.

The operation is as follows:

After the apparatus is set into the well, and the lower p ortionsubmerged, and the plate F secured to the platform of the well, the pump is set in operation.

At the upward movement of the piston, the suctionvalve a will be lifted from its seat, and the liquid enters thc space vacated by the piston, while the plate g closes at the same time the openings ofthe lower diafphragm ci' piston, and thus communication is opened betweenpassage B and tube H for the delivery ofthe liquid.

At the downward movement of the piston, the valve b will be lifted, the apertures in diaphragm f closed by plate g, and valve a shut down upon its seat, and communication is now opened through central oriice of plate g, and openings in diaphragm f, `between tube H and the lower portion of pump-barrel, and the liquid contained therein forced upward through the tube H, and delivered through the nozzle. c

Thus, a double-acting force-pump, of great simplicity, submerged and protected from freezing, and capable of carrying the liquid for a great distance, is produced with small expense and labor. `There is no wearing out or disarrangement of valves, nor is anything likely to interfere with the same and stop its operation.

This construction for a submerged pump is valuable as a ship-pump, both on account of the quantity of.

water it will throw and the simplicity of its setting, and one of the greatest objections of ordinary shippumps is eiectually overcome; that is, in leaving some fixture, projection, or apparatus above the deck, which is a most serious objection. My pump entirely overcomes this,- as all that is necessary is to have the propel'- sized openings in the floorof the deck, and the pump,

the action is like many pumps, and the lower valves old, as Well as the tubular piston-rod H.

Having thus fully described my invention,

What I claim as new, and desire to secure by Letters l Patent, is- The combination of valve-plate g, perforated diaphragms ff', piston G, tubular piston-rod H, pumpp barrel A, valves a and b, chamber D, legs D' D D', box E, arms d d', socket-flanges c e, link l, and arm t',

socket h, and handle k, all arranged and operating, relatively to eachl other, substantially as described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribingwitnesses.

p ALONZO C. BLETHEN.

Witnesses:

CARROLL D. WRIGHT, J osIE G. BLETHEN. 

